academic article

academic article

Letter to Kazimierz Ajdukiewicz written 6/15/1949

Letter from Tadeusz Czeżowski written 03.03.1947

Letter to Kazimierz Ajdukiewicz written 2/25/1953

Letter from Kazimierz Ajdukiewicz written 17.02.1949

Letter from Kazimierz Ajdukiewicz written 10/1/1948